the same technology used by physical therapists. go to bengay.com for a $3 coupon. >>> it's the middle of the night, july 23rd, 2007. suspect steven hayes and joshua komisarjevsky are inside the petit home. police say komisarjevsky goes upstairs, surprises the girls and their mother, tying them to their beds. they then search the house for money. around 7:00 a.m., four hours after they entered the house, steven hayes leaves to buy a few jugs of gasoline. that's him paying for it, captured on this security camera video at this gas station about four miles from the house. "in session" reporter, beth karas followed the case. >> they planned to do something with the gasoline or hayes wouldn't have been sent out to get four gallons of gasoline. >> reporter: when hayes returns, they find a checkbook with reportedly more than a $20,000 balance. with threats, they force mrs. hawke-petit to drive to the bank. you're watching a wife a mother in a desperate attempt to save her family. that's jennifer hawke-petit on this bank security camera vi